Update doc and vm config to use hvc0 for console

Bug: 332603752
Test: connect to ferrochrome console
Change-Id: Iee426f62d9918754e7cf12fddba286e33e20a5e2

docs/custom_vm.md

diff --git a/docs/custom_vm.md b/docs/custom_vm.md
index 6c51795..6422678 100644
--- a/docs/custom_vm.md
+++ b/docs/custom_vm.md
@@ -201,7 +201,7 @@
     "cpu_topology": "match_host",
     "platform_version": "~1.0",
     "memory_mib" : 8096,
-    "console_input_device": "ttyS0"
+    "console_input_device": "hvc0"
 }
 ```
 

ferrochrome_app/vm_config.json.template

diff --git a/ferrochrome_app/vm_config.json.template b/ferrochrome_app/vm_config.json.template
index cb968ec..6e1992f 100644
--- a/ferrochrome_app/vm_config.json.template
+++ b/ferrochrome_app/vm_config.json.template
@@ -33,5 +33,5 @@
         "backend": "virglrenderer",
         "context_types": ["virgl2"]
     },
-    "console_input_device": "ttyS0"
+    "console_input_device": "hvc0"
 }

tests/ferrochrome/assets/vm_config.json

diff --git a/tests/ferrochrome/assets/vm_config.json b/tests/ferrochrome/assets/vm_config.json
index 358df95..36ab42c 100644
--- a/tests/ferrochrome/assets/vm_config.json
+++ b/tests/ferrochrome/assets/vm_config.json
@@ -16,5 +16,5 @@
     "cpu_topology": "match_host",
     "platform_version": "~1.0",
     "memory_mib" : 8096,
-    "console_input_device": "ttyS0"
+    "console_input_device": "hvc0"
 }